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Mercier" , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Ritesh Harjani , Shrikanth Hegde , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Sven Schnelle , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H . Peter Anvin" , Kiryl Shutsemau , Rick Edgecombe , "K . Y . Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Long Li , Paolo Bonzini , Vitaly Kuznetsov , Andy Lutomirski , Peter Zijlstra , dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-media@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v8 03/14] irqchip/gic-v3-its: Resolve the default NUMA node explicitly Date: Thu, 24 Sep 2026 15:35:18 +0530 Message-ID: <20260924100529.1398790-4-aneesh.kumar@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260924100529.1398790-1-aneesh.kumar@kernel.org> References: <20260924100529.1398790-1-aneesh.kumar@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: whr7cx9nn7qwckc8d83nj6uzg4ofhu3s X-Rspam-User: X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: A3C7A40003 X-HE-Tag: 1790244401-791337 X-HE-Meta: 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 SpcSvdAe bx4MxFJJhqCoI+qtdjBvEuXQwtTIgUexH7YOgp4K4wkXDQ4yheZolRTU4CqMEFgmmlmzkWRUAR+NpbQja+e01qmG+ysf6CKFUKCflywOVgDXNQ/kuK44QOF+aLz6cl2lJ6cEgmh+HGInFoDwL4FBIS2SMOb3zZ2DquTvyrZW0zkgNGWA/cZ8RN+Id4XZ91TyciyVtYOjfRVupAP536ck+cRG3JaXP/O7MR5OP+AD5BJulQItpscrW4ns4nmEy3xhf6VHqSEfIdOwi1CezxtO/hFyL0M1BisFtjzlYWx4t1P6ckZ7JlDyG0Hkt3inXZ7zVQt3RsYoVXhS2TX6/G0r1Z2bH26Xras32akSWsf2ffGniERE= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: alloc_pages_node() resolves NUMA_NO_NODE to numa_mem_id() internally. In preparation for switching ITS allocations to the CoCo shared memory allocator, resolve the default node explicitly in its_alloc_pages(). The CoCo shared memory allocator interprets NUMA_NO_NODE as a request to apply the current task's memory policy. Passing numa_mem_id() instead preserves the existing nearest-memory-node placement across the allocator switch. This patch does not change the current allocation behavior. Cc: Marc Zyngier Cc: Thomas Gleixner Cc: Radu Rendec Signed-off-by: Aneesh Kumar K.V (Arm) --- drivers/irqchip/irq-gic-v3-its.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index e9807af23537..ac5507acb1a0 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include @@ -236,7 +237,7 @@ static struct page *its_alloc_pages_node(int node, gfp_t gfp, static struct page *its_alloc_pages(gfp_t gfp, unsigned int order) { - return its_alloc_pages_node(NUMA_NO_NODE, gfp, order); + return its_alloc_pages_node(numa_mem_id(), gfp, order); } static void its_free_pages(void *addr, unsigned int order) -- 2.43.0